JS DateTime 格式化

     function ChangeDateFormat(val) {
            if (val != null) {
                var date = new Date(parseInt(val.replace("/Date(", "").replace(")/", ""), 10));
                //月份为0-11，所以+1，月份小于10时补个0        
                var month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) :
                date.getMonth() + 1;
                var currentDate = date.getDate() < 10 ? "0" + date.getDate() :
                date.getDate();
                return date.getFullYear() + "-" + month + "-" + currentDate;
            }
            return "";
        }